Combination fire-alarm and watchman&#39;s recording box



Dec. 9, 1930.

F. B. LOVE ET AL COMBINATION FIRE ALARM AND WATCHMAN'S RECORDING BOXFiled Feb. 1'7, 1925 4 Sheets-Sheet l INVENTORS .yl'mzc'zls B. Lore 04 yBaycz 62711772. in M r 2 ATTORNEYS Dec. 9, 1930. .F. 8. LOVE ET AL1,784,530

COMBINATION FIRE ALARM AND WATCHMANS RECORDING BOX FiledFeb. 1'7, 5 4Sheets-Sheet 3 INVENTORJ ji'azzczls 5 Love 4/11/- A TTORNEYvS 1930. F.B. LOVE ET AL 1,734,530

COMBINATION FIRE ALARM AND WATCHMANS RECORDING BOX Filed Feb. 1'7, 19254 Sheets-Sheet 4 Q Q E V) -S :2 L 2 a u 3 U g & Q &' k v; Q X L 0 QCOMB/ ATION WATC/YMAN AND IRE ALARM 80 56 JIOOBl/J NJV7V 37/1 INVENTORSJZ'QIZCI'J Lo ve 4/14 4/099? t zLv w y Bo d/[62 112 12 Patented Dec. 9,1930 PAT E FFHC FRANCIS B. LOVE AND BOYD H. SMITH, OF SHELBY, OHIO,ASSIGNOBS TO THE AUTO- CALL COMPANY, OF SHELBY, OHIO, A CORPORATION OFOHIO V COMBINATION FIRE4ALARM Ann WATCHMANS nnoonnrne, BOX

Application filed February ing boxes. More particularly it comprises atransmitting mechanism and associated circuits for sending from a singlebox distinctive signals for watchmens recording and fire alarm purposes.It has heretofore been proposed to combine a transmitting mechanism forwatchmens signals with fire alarm signals, but in some instances suchapparatus was complicated in construction and difficult to maintain inadjustment and repair under conditions of severe service.

. The principal object of the; present invention is to obviate thedisadvantages referred to and to provide an improved combined signaltransmitting mechanism of the character described. Another object of-theinvention is to provide an apparatus of the character mentionedembodying a minimum number of parts and avoiding duplication ofoperative mechanism to as greata n extent as practicable. 1 furtherobject is to simplify the construction of such apparatus so thatecononly of manufacture will be promoted and ease of assembly and repairof the same will be facilitated. Further objects of the invention willappear in the course of the following description; To the accomplishmentof the foregoing and related ends, said invention, then, consists of themeans hereinafter fully described and particularly pointed out in theclaims. I p

The annexed drawingsand the following description setforth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

In said annexed draW1ngs:

, Fig. 1 is a front elevation of thetransmitting mechanism, the portionshown'to the left being the lower, portion of the mechanism when thesame is installed in its case; Fig. 2 is a sectional view of theapparatus shown in Fig. 1, taken along the line 22 shown in Fig. 4,looking in the'direction of'the arrows; Fig. 3 is a View similar to Fig.2,,taken along the line 3-8 shown in Fig. 4, lookmg in the direction ofthe arrows; Flg. 4 1s a 17, 1925.. Serial 110.3,829.

view of the mechanism shown in F 1, as-

seen from the left-hand side of said figure;

Fig. 5 is a rear elevation of the mechanisn'i shown in Fig. 1, theportion shown at the right being the lower portion of said apparatuswhen installed in the casing; Figs. 6 and 7 are sectional views of themechanism shown in Fig. 4, taken along the lines 66and 77 of Fig. 4,looking in the direction of the arrows; Fig. 8 is a top plan view of theswitch contacts and associatedsupporting members;

Fig. 9 is a transverse sectional view taken along the line 9-9 shown inFig. 3; and Fig. 10 is adiagrammatic view of the circuit connections.for the combination fire alarm' and watchmens recording boxes. j

As is clearlyshown inthe drawing, the apparatus comprises a supportingframe- 1 see Fig. 4), having a, front and back plate 2, 3, secured toeach other by means of spacing bars 4. A pair of spindles 5, 6, aremounted in said frame and have their forward ends projecting from thefront plate. One of these spindles 5 has secured to its outer end a pulllever 7 and when actuated is adapted to set the mechanism for sending infire alarm. The other spindle 6 has pinned to its outer end a sleeve 8,(see also Figs. 1 and 9), carrying a pair of lugs 9, 10, and'having asquared end 11, which isadaptedto be engaged by a watchmans key, and,through the rotation of the spindle, place the mechanism under tensionto send in the watchnians signal. The fire alarm is designed torepeatthe sig nal a number of times, in the apparatus shown, the signalbeingrepcated four times, while the watchmans signal is intended tobesent but once. 1

The spindle 6, as is shown in Fig." 9, is journaled in a. spring shaft12, said shaft carrying a spring 13' and being formed with gear teethl4,'and the outerend of the tubular spring shaftis formed with a slot20' on its upper side to receive the lug f the sleeve 8pinned to theouter end of said spindle (3.

j of engagement with the slot on the spring shaft.

1. L washer 21 abuts a shoulder adjacent the gear 14 and serves toposition the spring 13 against the rearward face of the front plate. Asleeve, provided with a ratchet 22, is pinned to the spring shaft withthe ratchet abutting the rearward face of the gear 14. Adjacent theratchet the sleeve ispr'ovided with a cylindrical'bearing 23 for a largegear 24, which is held in position by means of a collar 25. Tlie'samepin 26 which secures the sleeve to the spring shaft also holds thecollar in position.

The movementstop 15 see Figs; 4 and 7) is provided with a rearwardly'extendii g pin 27 which lies within a groove 28 extending across theshunt circuit cam 29 which is 'positioned adjacent to the" movement stopon the opposite side of the collar 17*of the spindle 6 and has a reducedforward portion 30 of cylindrical shape. Rearwardl'y of the shuntcircuit cam, the hub-31' of the code wheels 32, 33, is rotatablysupported upon the spindle 6 and is held against the endof {the} shuntcircuit cam by means of a set screw 34 in the end of said spindle. The

hub is provided with a driving gear 35 at its forward end, and at itsrearward end has a reduced portion upon which an insulating collar 36 ismounted, said insulating collar serving as the hub for the code wheels,which ai'e'spaced from each other by a disc v37 or insulating material,Each. code wheel is secured to the spacing disc by means of screws orescutcheon pins 38, which extend through said disc in oppositedirections alternately acent the circumferential portion of said adinsulating disc;

The large gear 'with a stud 41, upon which is mounted a pawl 42 pressedby means of a spring 43 into engagement with the teeth of the ratchet 22whereby the rotation ofsaidlarge gear'in a clockwise directioniseii'ected whenever the clock spring is placed under 'tensionthroughtheuse either of the watchmans key or of spring type and has its innerend engaged with a spring pin 44 formed on the spring shaft. Its outerend is looped about the adja- 24 (see Fig. 3) is provided watchmans codesignal.

46, 47, forming part of the train for actuating the code wheels throughthe medium of an idler gear 48 supported upon a 1311149 in engagementwith theteeth of the gear 35 on the code wheel hub. The idler gear is ofsufiicient width to engage the teeth of said gear 35 irrespective of itstransverse ad ustnient,'when the watchmans code wheel is shifted beneaththe innermost pair of contact fingers, wh ch w1ll be hereinafter deinthe spring shaft 12 with relation to their lug 9 may be regulated. Atthe point where the spring shaft 19/1310] ect's through the front plate,an annular plate is provided, said plate being formed with a notch 56 inalignment with the lug 9 and a segmental recess -1 i '57 oppositethereto. As is shown in Fig. 9,

the lug 9 is normally in engagement with said notch in the plate 55 andthe spindlet is prevented from being rotated. When, however, through theuse of the watchmans key the spindle 6 is pressed inwardly, the lug 9 ismoved into the slot 20, and the lug 10' s broughtinto alignment with thesegmental recess 57 and thespindle may be turned in one direction untilthe lug 10 abuts the end opposite the end'of the segmental recess withwhich it was first in contact. During such motion of, the spindle thefor- 1 ward edge of the lug 9 will be engaged behind the edge of theannular plate and will hold thespindleinwardly and engaged with thespring shaft 12 until the lug 9 once more is moved into alignment withthe notch 56, when the coil spring 19 will force the same outwardly toits original position. Theamount of movement thus permitted is justsuiiicient to rotate the code wheel one revolution and therebyt-i'ansmit'the watchmans code signal one time, 1' i j During theoperation justdescribed, wherei in the spindle 6 is held in its inwardposition,

the watchmans code Wheel .32 will be moved away from the frame andbrought beneath a pair of contact fingers 61, 62,forming the termiiialsof tlieis eparate circuit for sending the ize v V The terminals referredto are mounted (see Figs. 5 to 7) upon v w an insulating supportcomprising an inter- 1 the pull lever. The spr ng13 is of the clockmediate block 63 secured to the back plate 3 and an upper andlowerinsulating plate 64,

plates 64, 65, carry, respectively, the spring 'fingersi66, 67,-whichco-ac't'with the code 13 Wheel for sending the fire alarm signal. Thelower contact 67 has secured thereto a test lever 69 engaged at its freeend within a notch 70 formed transversely of a terminal member 71 ofinsulating material which is mounted upon a test key shaft'72 (seeFig. 1) which projects through the front plate of the frame. The outerend 73 of the test key shaft is adapted to be engaged by a key and isprefelably formed of triangular shape, as shown in Fig. 1 of thedrawing. The test key shaft is providedwith a laterally extending pin74:, to the end of which a coil spring 75 is secured. The opposite endof the coil spring is anchored to a pin 68 set-in the forward face ofthe front plate at approximately the center thereof, and two guard pins58, .59, are positioned adjacent the test'key shaft, one on either sidethereof, to limit the movement of the test shaft through contact of thelateral pin with one or the other 'of said guard pins.

When turned in one directionithe test shaft is thus adapted to open thecontacts above the fire alarm code wheel at any time when it is desiredto test the circuit. And when turned in the other direction, thetestshaft occasions the lifting of the contacts clear of the code wheel,after which the box mechanism may be tested without disturbing thecircuit. On removing the key from the test shaft, spring 75 returns thetest shaft to neutral position.

The insulating block 63 directly supports the upper and lower shuntcircuitcontacts 76, 77. The lower of said contacts carries a fsh'oe 78of insulating material which is adapted to ride upon the cam- 29heretofore described. The transmitting of the. fire alarm signal rotatesthe cam to close the shunt circuit. This prevents interference with thesending of fire alarm signals from alarm boxes further removed fromthe'central station when a box nearerthereto is operating.

Upon the shaft 45 (see Figs. 2 and 3) a large gear 81 is mounted which,through the gear 79 on the shaft 80 drives the escapement wheel 90. Apallet 82 engages the teeth of theescapement wheel in the'usual mannerand retards the operation of the mechanism. The pallet shaft 83 has asectional vane 84, having weights 85 at the outer ends. 1.

The apparatus thusfar described willserve to actuate the watchmanssignal. The

mechanism for actuating the fire alarm signal'comprises mechanism placedin advance of the mechanism heretofore described.v

It comprises the spindle 5 adapted to be actuated by the hook lever 7which is secured to its squared forward end 87 by means of a retainingscrew 88.. i A sleeve 91, .provided with a ratchet wheel 92 having asingle tooth 98, is pinned to the spindle 5. From the forward face ofthe ratchet a pin 94; projects, said pin being adapted to contact withapair of pins 95, 96, setinto theinner face ofthe front plate,which thusdefine the arc of movement of the spindle 5.

. Immediately behind the ratchet wheel a large gear 97 is mounted, beingjournaled upon a bearing shoulder formed on the ratchet sleeve 91. Acollar 98 is engaged over the rearward portion of said sleeve and isprovided with a flange 99 which-bears against the gear, said collarbeing pinned to the sleeve andspindle. The gear carries on its forwardside a pin 101 upon which a pawl 102 is mounted. The end of the pin isnotched Projecting rearwardly from the flange 99, a pin 105- isprovided, against which one end of the hook lever return spring 106bears. The body of said spring is coiled about the collar between theflange and the back plate,

and thence extends about the spacing bar 1, upon which the end of theclock spring is looped, as heretofore described. The free end 107 ofsaid spring is positioned above the lower end of the pawl.

The ratchetand pawl will thus be engaged in when the pull lever isactuated. Said lever,

however, bodily moves the ratchet wheel 92 and gear wheel 97 and thusmoves the pawl.

from beneath the end 107 of the spring, the pressure on the pull leverthereafter maintaining the engagement of the pawl and ratchet. When thepull lever is released, the pawl spring 103 raises the lower end of thepawl. Further actuation of the pull lever thereafter will be ineffectiveto retard or in any way interfere with sending of the fire alarm codethe full number of times for which the mechanism is arranged, inasmuchas the pawl will be; held clear of the ratchet until its nose ridesunderthe spring 107 as the.-movement rotates, whichresets the pawl inengagement with the ratchet.

To send/a .watchmans signal, the watchmans key is engaged over thesquared end 11 of the sleeve 8 which is pinnedjto the spindle 6. Thesleeve, and spindle are then pressedtoward the back plate which clearsend of the segmental recess to that with which it was first in contact,and'the movement is released to send the signal through the gear trainconnecting with the drive gear 35 on the code wheel hub 31 vVhen thespindle is pressed inwardly, the watchmans code wheel 32 will likewisebe moved inwardly-and be brought from an idle position to a positionbeneath the contact fingers 61, 62. The fire alarm code wheel 63 by thesame movement will be brought out of alignment with its spring contactfingers 66, 67. VVhen'the watchmans code wheel has been driven a fullrevolution, the lug 9 will have moved back to its originalposition inalignment with the notch 56' and the coil spring 19 will then force thelug and its associated parts outwardly,disengaging the lug 9 from theslot 20 of the spring shaft 12, and locking the lug in the notch 56.

To send the fire alarm signal, the pull lever 7 is moved in a clockwisedirection, which turns the spindle 5 with its sleeve 91, carrying aratchet wheel 92 pinned tothe spindle. The are of movement of thespindle 5 is defined by means of the pins 95, 96 set into the inner faceof the front plate which are contacted with by means of a pin 94 setinto the forward face of the ratchet. through its single tooth 93engages the free end of the pawl 102 which is pressed downwardly by thespring 107 when the parts are in their normal position. The pawl 102 iscarried on the large gear 97 which is rotated by the downward movementof the pull lever and through'the engagement of the teeth on itscircumference it serves to rotate the spring shaft 12 through the gear14 storing sufficient tension in the spring 13 to drive the fire alarmindicator code wheel four complete revolutions through the pawl 42, gear24, the teeth of the ratchet 22 and the intermediate train of gears,identical with the gear train driving the watchmans code wheelthroughthe' hub 31 and driving gear 35. The-fire alarm code wheel 33'isnormally positioned beneath the contact fingers 66, 6'? while thewatchmans code wheel 32 is normally out of alignment with itscontactfingers 61, 62. Thus the fire alarm signal maybe sent without laterally moving the spindle 6 and itsassoci'ated mechanism. After the pullleveris moved totensionspring 13, the watchmanls signal cannot be sentfor the reason that the slot, 20 is moved out of ahgnm'ent with the lug'9 and prevents the spindle 6 from being forced inwardly into operative;relations with the spring shaft 12. After'the fire alarm signal has beentransmitted four times, theparts will be restored to their originalposition.

When the watchmans key is inserted: and is operated to rotate the sleeve-11 to wind the spring'13, engagementofthe teethld on said sleeve withthe teeth-on jthe gear 97 causes rotation of saidgear in a clockwisedirection. Such rotation, of course, moves thefpawl102 The ratchet outof contact with the retaining spring 107 and permits the pawl spring 103to rotate said pawl in a clockwise direc'tion'about its pivot, thusmoving the pawlend outof the path of the single tooth 93 of theratc'hetwheel 92.

Consequently, operation of the fire lever 7 after actuation of themechanism by the watchmans key and before the watchinans code has beencompleted will haveno efi'ect upon the mechanism. a

In Fig. 10 there are shown three combination watchmens and fire alarmboxes, the code wheels being indicated diagrammatically. 'lhewatclnnanscircuit, as 1in di'cated, connects with the spring contact fin gcrsabove each of the watchmans code Wheels and said contacts are normallyclosed, such code wheels thus being in series connection. There isincluded in the watchmans circuit a relay, and

anauxiliary line to a tape punch register.

through said relay from a battery. As indicated, the fire alarm andw-atchmans circuits are entirely separatel :lVhile the watchshaft withthe fire alarm code-wheel, SttlCl=. .lvices are never in operation atthe same time and the mechanism prevents thesending of the watchmanssignal when the firealarm' signal is being transmitted. This is providedfor through the. arrangement that the slot 20 in the spring shaft 12will be out of alignment-withthe'lug 9 of the sleeve Swhen the firealarm signal is'being transmitted. The watchmans code wheel is spacedclosely adjacent the fire alarm code wheel and normally lies between thetwopairs of contacts and out'of alignment with the watchmans circuitterminals. YVhem-however, the spindleo is pressed rearwardly. throughthe engagement of the .watchinans key withthe end of the spindle, thewatchmans code wheel .is

brought 'into' alignment with said terminals and the firealarm codewheel is moved to an intermediate position outof contact with thefirealarm circuit terminals;

The C11'CLl1tCO1'll3aCt-S are normally closed.

V T mans code-wheel 1S mounted upon the same l/Vhen, however, throughthe pull lever or the 1 watchmans key the mechanism is set foroperation, the appropriate code wheel will I be 'placed in alignmentwith the proper circuit terminals and theteeth on the-periphery thereofwillsuccessively separate the contacts, thereby sending in the alarm.The

shunt contacts are normally open. However, when the fire alarmtransmitting mechanism' is in operation the shunt circuit will be closedthrough the action of the cam 29, Which will prevent signals beingtransmitted over the fire alarm circuit from a box further removed fromthe central station. The watchmans circuit has no shunt circuit, andwhen the watchmanscode wheel is in transmitting position the reducedportion of the cam sleeve will be brought beneath the shunt circuit shoe7 8 and no shunt circuit closing action will take place. It is obvious,however, that if desired a separate shunt circuit for the watchmenscircuit could be provided.

It is possible to employ the same code Wheel for actuating the contactsof each circuit where the signals to be sent are identical in character.The reception of such signals, however, would be upon separateindicating devices and thus no confusion would result as to thecharacter of thesignal. g V

In the circur diagram shown in Fig. 10 the fire alarm circuit serves toactuate a series of gongs through the operation of a Prelay, whilethewatchmans circuit is connected with a relay which actuates a tape punchregister. The particular signaling or recording means employed at thecentral station forms nopart of the present invention and it is obviousthat any desired signaling de-" vice may be utilized.

Other modes of applying the principle of our inventionmay be employedinstead of the one explained, change being made as regards the mechanismherein disclosed, provided the means stated by any of the followingclaims orthe equivalent of such stated means be employed. 7 i

Ne therefore particularly point out and distinctly claim asourinvention 1. In a device of the classdescribed, a, set of contactelements connected in a first circuit, a set of contact elementsconnected in a second circuit, and mechanism for actuating saidrespective sets ofcontacts to transmit distinctive signals over saidcircuits, comprising an axially shiftable shaft, coding mechanismcarried by said-shaft and normally disposed in cooperable relation Withsaid first set of contacts. only, a motor for driving said contactmechanism, means for energizing said motor, separate means forenergizing said motor and for simultaneously shifting said shaft to movesaid coding mechanism into cooperate-relation with said second set ofcontacts only, and means for holding said shaft in shifted positionthroughout a complete operative cycle of the device.

2. In a device of the class described, a set of contact elementsconnected in a first circuit, a set of contact elements connected in, asecond circuit, and mechanism for actuating said respective sets. ofcontacts to transmit distinctive signals over said circuits, comprisingan axially shiftable shaft, coding in shifted position throughout acomplete 7 operative cycle of the device.

3. In a device of the class described, a.

set of contact elements connected in a first circuit, a setof contactelements connected in a second circuit, and mechanism for actuating saidrespective sets of contacts to trans mit distinctive signals over saidcircuits, comprising an axially shiftable shaft, coding mechanismcarried by said shaft and normal ly disposed in cooperable relation Withsaid first set of contacts only, a motor for driving said contactmechanism, means for energize ing said motor, separate'means forenergizing said motor and for simultaneously shifting said shaft to movesaid coding mechanism into cooperable relation With said sec- 'ond setof contacts only, and means cooperable with said last-named meansforholding said shaft in shifted position throughout a completeoperative cycle of the device, and automatic means for returning saidshaft to normal position upon completion of such cycle.

' 4-. In a device of the class described, a set of contactpointsconnected in a first circuit, a set of contact points connected ina second circuit,and mechanism for actuating said re-. spectivc sets ofcontacts to transmit distinctive signals over said circuits, comprisingcoding mechanism cooperable With said first set of contacts, codingmechanism cooperable With said second set of contacts, means foroperating said coding mechanisms, and a plurality of means selectivelyoperable to energize said operating means, one of said last-named meansbeing rigidly connected. to said coding mechanisms and being shiftableto determine the alignment of said coding mechanisms'with saidrespective contacts.

5.. Ina device of the class described, a set of'contact elementsconnected in a first circuit, a set of contact elements connected in asecond circuit, and mechanism for actuating said respective sets ofcontacts, to transmit distinctive signals over said circuits; comprisingcoding mechanism normally in cooperable relation with said-first set ofcontacts, coding mechanism normally out ofcooperable relation with saidsecond set ofcontacts, means for operating said coding mechanism, and aplurality of means selectivelyoperable to energize said operating means,one of said lastnamed means carrying 'said second coding mechanism beingshiftable to move the same into cooperable relation with said secondset' mechanism's, a plurality of means selectively operable to energizesaid operating means, one of said energizing means having a rigidconnection with said second coding mechanism and being 'operableto movethe same into cooperable relation with sa d's aid second set ofcontacts, and means associated with said coding mechanism establishingsaid shunt circuit only when the other of said en ergizing means isoperated. I a

Iri adevice of the class described, a first set of contact points, and asecond set of contact points, coding mechanism normally n cooperablerelation with said first set of conout of cooperable relation with saidsecond set of contacts, a terminal compr s ng a portion of a shuntcircuit carried ad acent said coding mechanisms, contact means associatewith said coding-mechanisms, and cooperabie with said shunt contact forestablishing sa d shunt circuit, and means for shifting saidsecondcodingmechanism into cooperable relation with said second set ofcontacts simultaneously rendering said shunt contact means ineffective.I

8. In a device of the character described, a

I first set of contacts, a second set of contacts,

a motor, a longitudinally shiftable shaft, coding mechanism carried bysaid shaft, and

normally in cooperable relation \Vlth. sai

first set of contacts only, means connecting said motor to drive saidcoding mechanism, a contact member connected in a shunt circuit, anothercontact member connected n such shunt circuit and a cam carried by saidshaft and coopei'able with one of sa d shunt contact members, attimes,to establsh such shunt circuit, means fonenerg zing s aidmotor, andmeans for shifting said shar tlongttudinally to move said codingmechanism into cooperable relation with said second set of contacts onlyand to rend'ersuch cam ineil'eo tive to establish said shunt circuit. II

9. In a device of, the character described, a first set of contacts,asecond set of contacts, a motor, a longitudinally shiftable shaft.coding mechanism carried by said shaft, and normally in coopei'ablerelation with said set of contacts only, means connecting said with saidalarm 30 tacts', a second coding mechanism normally.

motor to drive said coding mechanism, a contact member connected in ashunt circuit, an-

circuit and a cam carried by said shaft and cooperable with one of saidshunt contact members, vat times, to establish such shunt circuit, meansfor energizing said motor, means for shifting said shaft longitudinallyto move said coding mechanism into cooperable relation with said secondset of contacts onlyiand to render said cam ineffective to establishsuch shunt circuit, andmeans for holding said shaft in shifted positionthroughout a complete operative cycle of the device.

10. In a device of the characterdescribed,

a first set of contacts,a second set of con t acts, a motor, alongitudinally shiftable shaft, a code wheel carried by said shaft andnormally in cooperative relation with said 61' of contacts and to rendersaid cam member ineffective to establish said shunt circuit.

11. In a device of the character described, a first set of c0n'tac'ts,'asecond set of contacts, a motor, a longitudinally shiftable shaft, acodewheel carried by said shaft and normally in cooperative relation withsaid first set of contacts, a secondcode wheel carried by said shaft andnormally out of cooperative relation with said second set of contacts,means connecting said motor to drive said code wheels, a contact memberconnected in a shunt circuit, a second contact member connected in suchshunt circuit and a. cam carried by said shaft and coo'perable with oneof said contact members, at times, to establish said shunt circuit,means for energizing said motor, means for shifting said shaftlongitudinally to move said second code wheel into cooper-able relationwith said second set of contacts and to'render said cam memberine'fiective to establish said shunt circuit, and means forh'oldi'ngsaid shaft in shifted pdsition throughouta complete operative cycle ofthe device. I

12. An apparatus of the character described, having in combination,terminals of apiuraiit-y of circuits, a longitudinally shiftable shaft,coding mechanism carried by said shaft and normally in cooperablerelation "with one set of said terminals only, said shaft bein shittabieto move said coding'meehaother contact member connected in suchshuntnism into cooperable relation with another set of said terminalsonly, a motor, means connecting said motor to drive said codingmechanism including a sleeve rotatably mounted on said shaft, saidsleeve being geared to said motor, and means on said shaft adapted Whensaid shaft is shifted, to cause said shaft and sleeve to rotatetogether.

13. An apparatus of the character described, having in combination,terminals of a plurality of circuits, a longitudinally shiftable shaft,coding mechanism carried by said shaft and normally in cooperablerelation with one set of said terminals only, said shaft being shiftableto move said coding mechanism into cooperable relation with another setof said terminals only, a motor, means connecting said motor to drivesaid coding mechanism including a sleeve rotatably mounted on said shaftand geared to said motor, means on said shaft adapted when said shaft isshifted, to cause said shaft and sleeve to rotate together, and meanscooperable With said last-named means when said shaft has been shiftedto hold said shaft in shifted position throughout a complete operativecycle of said apparatus.

14. An apparatus of the character described, having in combination,terminals of a plurality of circuits, a longitudinally shiftable shaft,coding mechanism carried by said shaft and normally in cooperablerelation with one set of said terminals only, said shaft being shiftableto move said coding mechanism into cooper-able relation with another setof said terminals only, a motor, means con necting said motor to drivesaid coding mechanism including a sleeve rotatably mounted on said shaftand geared to said motor, means on said shaft adapted When said shaft isshifted, to cause said shaft and sleeve to ro tate together, meanscooperable With said last-named means when said shaft has been shiftedto hold said shaft in shifted position throughout a complete operativecycle of said apparatus, and means for returning said shaft to normalposition upon completion of the cycle.

15. An. apparatus of the character de scribed having in. combination,terminals of a plurality of circuits, a longitudinally shiftableshaft, apair of code wheels carried by said shaft, said code Wheels ieing spacedapart by a distance differing from the space beiu'eei'i said. respectivesets of terminals, a motor, means connecting said motor to drive saidcode wheels including a sleeve rotatable with respect to said shaft,said sleeve being provided with a notch at its one end, a collar pinnedto said shaft, a lug on said collar,

adapted, in one relative position .of said 001- lar and sleeve, to entersaid notch, and means to prevent removal of said lug from said notchexcept in one position of said lug with respect to said last namedmeans.

16. An apparatus of the character dc scribed, having in combination atubular shaft, a second shaft reciprocably mounted in said tubularshaft, said tubular shaft being rotatable With respect to said secondshaft, a plurality of code Wheels pinned to said second shaft, aplurality of spring fingers projecting over said second shaft, means formoving said second shaft axially to bring one of said code Wheelsbeneath a selected spring linger, a separate electric circuit adapted tobe connected and disconnected through each of said spring fingers, meansengaging said tubular shaft for driving said code Wheels, and singlemeans for energizing said driving means and con.- trolling the alignmentof one of said code Wheels With respect to one of said spring fingers.

17. An apparatus of the character described, having in combination atubular shaft, a second. shaft reciprocably mounted in said tubularshaft, said tubular shaft being rotatable with respect to said secondshaft, a plurality of code wheels pinned to said sec ond shaft, aplurality of spring fingers projecting over said second shaft, means formoving said second shaft axially to bring one of sald code Wheelsbeneath a selected spring finger, a separate electric circuit adapted tobe connected and disconnected through each of said spring fingers, meansengaging said tubular shaft for drivingsaid code Wheels, single meansfor energizing said driving means and'contro-lling the alignment of oneof said code Wheels With respect to one of said spring fingers, andmeans preventing operation of said last-named means to energize saiddriving means Without aligning said one code wheel with its respectivespring fingers.

18. An apparatus of the character described, having in combinationterminals of a plurality of electric circuits, automatically operatedmeans selectively operable for intermittently opening and closing saidrespective circuits at said terminals, a spring motor for operating saidmeans, means for energizing said motor to a predetermined degree foractuating one of said automatically operated means, means forenergizingsaid motor to a predetermined and different degree foractuating another of said automati cally operated means, and separatemeans for rendering each of'said energizing means inoperative forenergizing said motor during such automatic operation after energizationof said motor by any One of said energizing means.

Signed by us, this 14 day of Feb, 1925.

FRANCIS B. LOVE. BOYD H. SMITH.

